Cycles rendering mode crashes the entire program AMD OpenCL
Posted this in an AMD forum Users Post:
Re: In 2021,Why AMD GPU Still Sucks On Cycles?!
I think I might have found a so-called hack to get the 'Indirect_Background' one to work. 

Start with initial default cube. Mainly so that Blender will recover faster.
Add a HDRI (don't really know if you have to).
Switch from 'Solid' view to 'Mat Preview' then switch to 'Render' view. Now I think it does start to hang, but immediately switch back to 'Mat View' and wait for it to clear its self up. Then switch back to 'Render' view.
Hit F10 while still in 'Viewport' (may not have to do this, but was in 'Mat Preview').
Go to Render tab and watch the magic happen (hopefully).

I don't think I've forgotten anything. You can then open another file and everything should still work. Even on start up.
*** Updated to Adrenaline 21.4.1, repeated what's above and it still works ***